Ozealis

The $75 Experimental CPAP Simulator – Open-source, modular, and built to empower.

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Key Features

🛡️
Safety First

PTC fuses, reverse polarity protection, and power-loss alarms built-in.

🔌
Flexible Power

Runs on 11–30V via standard DC5525 input — use laptop bricks or power stations.

📦
Fully Open-Source

Hardware, firmware, and 3D-printable enclosures — no proprietary parts or DRM.

Gallery

External appearance from the front. It may look blocky and angular but this is to make it easily 3d printable. Compatible with 22mm rubber hoses.
External appearance from the rear. Replaceable air inlet grill and filter.
The circuit board. Dual layer, BOM with LCSC MOQs is about 20$.
Miniature but effective inlet muffler. A two-part array of tuned Helmholtz resonator tubes.

Why Ozealis?

Because breathing shouldn't require a credit check. Ozealis is built for those who can't afford to wait.

Get Involved

Join us in building a safer, more accessible future.

Visit GitHub Repo